well, as usual,I find myself in agreement with Mcgrath.(sorry Kev)
The smoking analogy is persuasive, the difference being, that although both types of behaviour have been proved to be extremely damaging to personal and public health, only smokers have their "human rights" curtailed.

Sometimes I think posters open old threads, post new information, or skewed information to support whichever view they hold.
Certainly they never post anything new which is at variance with their opinions.

I suppose it's being a "respectable" troll really.